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1 | /************************************************************************** | |
2 | * Copyright(c) 2007, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | //This class produces PHOS digits of one event | |
19 | //using AliPHOSRawDecoder. | |
20 | // | |
21 | // For example: | |
22 | // TClonesArray *digits = new TClonesArray("AliPHOSDigit",100); | |
23 | // AliRawReader* rawReader = new AliRawReaderDate("2006run2211.raw"); | |
24 | // AliPHOSRawDecoder dc(rawReader); | |
25 | // while (rawReader->NextEvent()) { | |
26 | // AliPHOSRawDigiProducer producer; | |
27 | // producer.MakeDigits(digits,&dc); | |
28 | // } | |
29 | ||
30 | // Author: Boris Polichtchouk | |
31 | ||
32 | // --- ROOT system --- | |
33 | #include "TClonesArray.h" | |
34 | ||
35 | // --- AliRoot header files --- | |
36 | #include "AliPHOSRawDigiProducer.h" | |
37 | #include "AliPHOSRawDecoder.h" | |
38 | #include "AliPHOSGeometry.h" | |
39 | #include "AliPHOSDigit.h" | |
40 | ||
41 | ClassImp(AliPHOSRawDigiProducer) | |
42 | ||
43 | //-------------------------------------------------------------------------------------- | |
44 | void AliPHOSRawDigiProducer::MakeDigits(TClonesArray *digits, AliPHOSRawDecoder* decoder) | |
45 | { | |
46 | //Makes the job. | |
47 | //TClonesArray *digits and raw data decoder should be provided by calling function. | |
48 | ||
49 | digits->Clear(); | |
50 | ||
51 | AliPHOSGeometry* geo = AliPHOSGeometry::GetInstance(); | |
52 | if(!geo) geo = AliPHOSGeometry::GetInstance("IHEP"); | |
53 | ||
54 | Int_t iDigit = 0 ; | |
55 | Double_t time = 0. ; | |
56 | Int_t iOldDigit; | |
57 | Bool_t seen,lowGainFlag; | |
58 | Int_t relId[4], absId =0; | |
59 | ||
60 | while (decoder->NextDigit()) { | |
61 | ||
62 | if (decoder->GetEnergy() <= 0.) | |
63 | continue; | |
64 | ||
65 | if(decoder->IsOverflow()) | |
66 | continue ; | |
67 | ||
68 | lowGainFlag = decoder->IsLowGain(); | |
69 | time = decoder->GetTime(); | |
70 | ||
71 | relId[0] = decoder->GetModule(); | |
72 | relId[1] = 0; | |
73 | relId[2] = decoder->GetRow(); | |
74 | relId[3] = decoder->GetColumn(); | |
75 | geo->RelToAbsNumbering(relId, absId); | |
76 | ||
77 | // Add low gain digit only | |
78 | //if the high gain digit does not exist in the digits array | |
79 | //or has negative energy (overflow) | |
80 | ||
81 | seen = kFALSE; | |
82 | ||
83 | if(lowGainFlag) { | |
84 | for (iOldDigit=iDigit-1; iOldDigit>=0; iOldDigit--) { | |
85 | AliPHOSDigit * dig = dynamic_cast<AliPHOSDigit*>(digits->At(iOldDigit)) ; | |
86 | if (dig->GetId() == absId) { | |
87 | seen = kTRUE; | |
88 | // //if High Gain overflowed - replace energy | |
89 | // if(dig->GetEnergy()<0) | |
90 | // dig->SetEnergy((Float_t)decoder->GetEnergy()) ; | |
91 | break; | |
92 | } | |
93 | } | |
94 | if (!seen) { | |
95 | new((*digits)[iDigit]) AliPHOSDigit(-1,absId,(Float_t)decoder->GetEnergy(),time); | |
96 | iDigit++; | |
97 | } | |
98 | } | |
99 | // Add high gain digit only if it is not saturated; | |
100 | // replace low gain digit by a high gain one | |
101 | else { | |
102 | for (iOldDigit=iDigit-1; iOldDigit>=0; iOldDigit--) { | |
103 | AliPHOSDigit * dig = dynamic_cast<AliPHOSDigit*>(digits->At(iOldDigit)) ; | |
104 | if (dig->GetId() == absId) { | |
105 | dig->SetTime(time) ; //Replace time in any case | |
106 | dig->SetEnergy((Float_t)decoder->GetEnergy()) ; | |
107 | // if (decoder->GetEnergy() > 0){ //replace Energy only if not saturated | |
108 | // dig->SetEnergy((Float_t)decoder->GetEnergy()) ; | |
109 | // } | |
110 | seen = kTRUE; | |
111 | break; | |
112 | } | |
113 | } | |
114 | if (!seen) { | |
115 | new((*digits)[iDigit]) AliPHOSDigit(-1,absId,(Float_t)decoder->GetEnergy(),time); | |
116 | iDigit++; | |
117 | } | |
118 | } | |
119 | ||
120 | } | |
121 | ||
122 | digits->Compress(); | |
123 | digits->Sort(); | |
124 | } |